Essential Organic Chemistry, Global Edition
Essential Organic Chemistry, Global Edition
3rd Edition
ISBN: 9781292089034
Author: Paula Yurkanis Bruice
Publisher: PEARSON
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Chapter 11.14, Problem 27P
Interpretation Introduction

Interpretation:

To write the mechanism for the reaction of an acyl chloride with acetate ion to form an acid anhydride.

Concept introduction:

The reaction of an acyl chloride with acetate ion is a nucleophilic substitution reaction. The acetate ion acts as a nucleophile and attacks the carbonyl carbon of the acyl chloride. The attack results in the formation of a tetrahedral intermediate. Some chloride group attached to the carbonyl carbon acts as a leaving group in the reaction and results in the collapse of the tetrahedral intermediate to form the corresponding anhydride.

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Students have asked these similar questions
When a student treated butanedioic acid with thionyl chloride, she was surprised to find that the product she obtained was an anhydride rather than an acyl chloride. Propose a mechanism to explain why she obtained an anhydride.
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Propose a mechanism for the reaction of an acyl chloride with acetate ion to form an acid anhydride.

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